Calk-equipped horseshoe.



N0. 706,205. Patented Aug. 5, I902. A. F. SCHUFIELD.

CALK EUUIPPED HORSESHOE.

(Application filed Apr. 21, 1902.;

(No Model.)

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CALK-EQU l PPED HORSESHOE.

SPECIFICATION forming part of Letters Patent No. 706,205, dated August 5, 1902.

Application filedApril 21, 1902. Serial No- 103,85'7.- (N0 1 1 1 1 To all whom it may concern.-

Be it known that I, ARTHUR FJSCHOFIELD, a citizen of the United States of America, residing at Westford, in the county of Windham and State of Connecticut, have invented certain new and useful Improvements in Call:- Equipped Horseshoes, of which the following is a specification.

The object of the invention is denoted by its title, that object being the production of a calk-equipped horseshoe having certain features of novelty and advantage.

In the accompanying drawings, Figure 1 is a side View of a calk-equipped horseshoe embodying said improvement. Fig. 2 is a face view showing that face of the calk which is undermost when the shoe is attached to the horses foot. Fig. 3 is a View in section on the plane at 56. Fig. l is a View in section on the rear. The front calk is denoted as a whole by the letter B, and the two rear calks, which are just alike, are denoted as wholes by the letter C.

The front calk B is composed of a single sheet of metal doubled upon itself, sharpened at the double, and turned off laterally into a bearing-wing B. This front calk is composed of two layers of material Z) b of difierent degrees of hardness. This matter is illustrated in Fig. 3. By preference the layer Z) is of steel andthe layer b is of soft iron. The

sharpening of the call: at the double brings the steel to form theedge, with the result that in wear the calkis self-sharpening. Each of the rear calks O is composed of layers 0 o of similar varying-"degrees of hardness, and the calks are sharpenedso as to bring the steel to form the edge, with the same result as making these calks self-sharpening in use.

The rear calks have the bearing-Wings C, and all three of the bearing-wings are perforated. The headed screws 01 run through the bearing-wings into the horseshoe and hold the calks to the shoe. The rear calks are provided with fingers 0 which reach down upon the two sides of the horseshoe and in connec tion with the headed screws tend to hold these calks in their proper position and alinements.

I claim as my improvement- 1. The attachable and detachable calk for the-frontof the'horseshoe made of one piece of sheet material doubled upon itself, sharpened at the double, and turned off laterally into a bearing-wing at the rear.

2. The attachable and detachable calk for the front of the horseshoe made of one piece of sheet metal composed of layers of material of different degrees of hardness, said sheet being doubled upon itself and sharpened at the double till the harder layer of material forms the edge, and turned off laterally into a bearing-wing.

In testimony whereof I affix my signature in presence of two witnesses. 

